When these baseline tests are completed, patients will be given Fansidar pills to take once a week for 12 weeks. The dosage will be increased after 2 weeks and again after 4 weeks. At 2, 4, 6, 8 and 10 weeks after starting the treatment and 2 weeks after the last dose, patients will have blood drawn to check for possible side effects of therapy. Women will have a repeat urine pregnancy test at week 6 of treatment.